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Bracket #40 — the answers

The five questions from November 8, 2026, with their answers, the track each ran on, and the bracket that would have scored 90 on it.

The answers

#QuestionAnswerTrackA tenth of it, on the answer
1How many piano sonatas did Beethoven write?325 to 10027.5 to 37
2How many stickers are on a Rubik’s Cube?5410 to 20044 to 64
3How far below sea level is the lowest point in Death Valley?282 feet20 to 1,000235 to 330
4How many species of birds are there, roughly?11,000100 to 1M, logarithmic6,900 to 17,000
5What do the whole numbers from 1 to 95 add up to?4,560100 to 100,000, logarithmic3,200 to 6,400

Question by question

A question scores 100 minus the bracket’s width as a percentage of the track, if the answer is inside it, and nothing if it is outside. The tenth-of-the-track bracket below is the one a confident player was aiming for.

  1. How many piano sonatas did Beethoven write? 32 — in the lower third of its track. A bracket from 27.5 to 37 is a tenth of the track and scores 90; the whole track scores 0.
  2. How many stickers are on a Rubik’s Cube? 54 — in the lower third of its track. A bracket from 44 to 64 is a tenth of the track and scores 90; the whole track scores 0.
  3. How far below sea level is the lowest point in Death Valley? 282 feet — in the lower third of its track. A bracket from 235 to 330 is a tenth of the track and scores 90; the whole track scores 0.
  4. How many species of birds are there, roughly? 11,000 — near the middle of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 6,900 to 17,000 is a tenth of the track and scores 90; the whole track scores 0.
  5. What do the whole numbers from 1 to 95 add up to? 4,560 — near the middle of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 3,200 to 6,400 is a tenth of the track and scores 90; the whole track scores 0.

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About Bracket

Bracket is Noggin’s estimation puzzle, on the second shelf: five questions a day with a number for an answer, bracketed rather than named, outside the daily line-up. How to play Bracket, or play today’s.